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6 papers · 2 filters
Dynamical transitions in aperiodically kicked tight-binding models
Vikram Ravindranath, M. S. Santhanam
If a localized quantum state in a tight-binding model with structural aperiodicity is subject to noisy evolution, then it is generally expected to result in diffusion and delocaliz…
Superuniversality of superdiffusion
Enej Ilievski, Jacopo De Nardis, Sarang Gopalakrishnan +2
Anomalous finite-temperature transport has recently been observed in numerical studies of various integrable models in one dimension; these models share the feature of being invari…
Spectral transitions and universal steady states in random Kraus maps and circuits
Lucas Sá, Pedro Ribeiro, Tankut Can +1
The study of dissipation and decoherence in generic open quantum systems recently led to the investigation of spectral and steady-state properties of random Lindbladian dynamics. A…
Hydrodynamics of nonintegrable systems from a relaxation-time approximation
Javier Lopez-Piqueres, Brayden Ware, Sarang Gopalakrishnan +1
We develop a general kinetic theory framework to describe the hydrodynamics of strongly interacting, nonequilibrium quantum systems in which integrability is weakly broken, leaving…
Spin crossovers and superdiffusion in the one-dimensional Hubbard model
Michele Fava, Brayden Ware, Sarang Gopalakrishnan +2
We use tools from integrability and generalized hydrodynamics to study finite-temperature dynamics in the one-dimensional Hubbard model. First, we examine charge, spin, and energy…
Superdiffusion from emergent classical solitons in quantum spin chains
Jacopo De Nardis, Sarang Gopalakrishnan, Enej Ilievski +1
Finite-temperature spin transport in the quantum Heisenberg spin chain is known to be superdiffusive, and has been conjectured to lie in the Kardar-Parisi-Zhang (KPZ) universality…